Miniature Implantable Antennas for Biomedical Telemetry: From Simulation to Realization
Miniature Implantable Antennas for Biomedical Telemetry: From Simulation to Realization
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DOI：
10.1109/tbme.2012.2202659
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发表时间：
2012-11-01
影响因子：
4.6
通讯作者：
Nikita, Konstantina S.
中科院分区：
文献类型：
--
作者：
Kiourti, Asimina;Costa, Jorge R.;Nikita, Konstantina S.
我们讨论了用于医疗植入通信服务频段（402-405 MHz）生物医学遥测的微型植入式天线的数值与实验设计和测试。一种新型的微型天线的模型最初提出了皮肤植入，其中包括不同的参数，以处理特定的制造细节。一个迭代的设计和测试方法，进一步建议，以确定参数值，最大限度地减少数值和实验结果之间的偏差。为了协助体外测试，提出了一种低成本的技术，用于可靠地测量液体的电性能，而不需要商业设备。在微型天线的特定原型制造/测试方法中进行确认。为了加快设计，同时提供通用皮肤植入的天线，在规范的皮肤组织模型内进行调查。最后在解剖头部模型内评估所提出的天线的谐振、辐射和安全性能。这项研究为植入式天线的设计提供了有价值的见解，评估了数值模拟中特定制造细节的重要性以及微型结构实验测试中的不确定性。所提出的方法可以应用于优化天线的几个制造/测试方法和生物遥测应用。
We address numerical versus experimental design and testing of miniature implantable antennas for biomedical telemetry in the medical implant communications service band (402-405 MHz). A model of a novel miniature antenna is initially proposed for skin implantation, which includes varying parameters to deal with fabrication-specific details. An iterative design-and-testing methodology is further suggested to determine the parameter values that minimize deviations between numerical and experimental results. To assist in vitro testing, a low-cost technique is proposed for reliably measuring the electric properties of liquids without requiring commercial equipment. Validation is performed within a specific prototype fabrication/testing approach for miniature antennas. To speed up design while providing an antenna for generic skin implantation, investigations are performed inside a canonical skin-tissue model. Resonance, radiation, and safety performance of the proposed antenna is finally evaluated inside an anatomical head model. This study provides valuable insight into the design of implantable antennas, assessing the significance of fabrication-specific details in numerical simulations and uncertainties in experimental testing for miniature structures. The proposed-methodology can be applied to optimize antennas for several fabrication/testing approaches and biotelemetry applications.